In a purely capacitive AC circuit, the current leads the voltage by how much pha

Practice Questions

Q1
In a purely capacitive AC circuit, the current leads the voltage by how much phase angle? (2023)
  1. 0 degrees
  2. 90 degrees
  3. 180 degrees
  4. 270 degrees

Questions & Step-by-Step Solutions

In a purely capacitive AC circuit, the current leads the voltage by how much phase angle? (2023)
  • Step 1: Understand what a purely capacitive AC circuit is. It means the circuit only has a capacitor and no resistors or inductors.
  • Step 2: Know that in AC circuits, voltage and current can be out of sync, which is called a phase difference.
  • Step 3: In a purely capacitive circuit, the current (I) reaches its maximum value before the voltage (V) does.
  • Step 4: This means the current leads the voltage.
  • Step 5: The specific amount that the current leads the voltage in a purely capacitive circuit is 90 degrees.
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